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https://issues.apache.org/jira/browse/CALCITE-6890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-6890:
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Labels: pull-request-available (was: )
> AggregateReduceFunctionsRule support sum function to be reduced
> ---------------------------------------------------------------
>
> Key: CALCITE-6890
> URL: https://issues.apache.org/jira/browse/CALCITE-6890
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.38.0
> Reporter: Yu Xu
> Assignee: Yu Xu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.40.0
>
>
> Currently AggregateReduceFunctionsRule not support sum function can be
> reduced, should support for the function.
> *for example:*
> select sal, max(sal) as sal_max, min(sal) as sal_min,
> avg(sal) sal_avg, any_value(sal) as sal_val, first_value(sal) as sal_first,
> sum(sal) sal_sum,
> last_value(sal) as sal_last
> from emp group by sal, deptno
>
> *logic plan is :*
> LogicalProject(SAL=[$0], SAL_MAX=[$0], SAL_MIN=[$0], SAL_AVG=[$0],
> SAL_VAL=[$0], SAL_FIRST=[$0], SAL_SUM=[$2], SAL_LAST=[$0])
> *LogicalAggregate(group=[\{0, 1}], SAL_SUM=[$SUM0($0)])*
> LogicalProject(SAL=[$5], DEPTNO=[$7])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
>
> *should be:*
> LogicalProject(SAL=[$0], SAL_MAX=[$0], SAL_MIN=[$0], SAL_AVG=[$0],
> SAL_VAL=[$0], SAL_FIRST=[$0], SAL_SUM=[$0], SAL_LAST=[$0])
> LogicalAggregate(group=[\{0, 1}])
> LogicalProject(SAL=[$5], DEPTNO=[$7])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
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